content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -----------------------
   * ChartEditorManager.java
   * -----------------------
   * (C) Copyright 2005-2008, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   ;
   *
   * Changes
   * -------
   * 24-Nov-2005 : Version 1 (DG);
   *
   */
  
  package org.jfree.chart.editor;
  
  import org.jfree.chart.JFreeChart;
  
  /**
   * The central point for obtaining {@link ChartEditor} instances for editing
   * charts.  Right now, the API is minimal - the plan is to extend this class
   * to provide customisation options for chart editors (for example, make some
   * editor items read-only).
   */
  public class ChartEditorManager {
  
      /** This factory creates new {@link ChartEditor} instances as required. */
      static ChartEditorFactory factory = new DefaultChartEditorFactory();
  
      /**
       * Private constructor prevents instantiation.
       */
      private ChartEditorManager() {
          // nothing to do
      }
  
      /**
       * Returns the current factory.
       *
       * @return The current factory (never <code>null</code>).
       */
      public static ChartEditorFactory getChartEditorFactory() {
          return factory;
      }
  
      /**
       * Sets the chart editor factory.
       *
       * @param f  the new factory (<code>null</code> not permitted).
       */
      public static void setChartEditorFactory(ChartEditorFactory f) {
          if (f == null) {
              throw new IllegalArgumentException("Null 'f' argument.");
          }
          factory = f;
      }
  
      /**
       * Returns a component that can be used to edit the given chart.
       *
       * @param chart  the chart.
       *
       * @return The chart editor.
       */
      public static ChartEditor getChartEditor(JFreeChart chart) {
          return factory.createEditor(chart);
      }
  }
  